23232015220721 has 8 divisors (see below), whose sum is σ = 23348910192000. Its totient is φ = 23115121761600.

The previous prime is 23232015220669. The next prime is 23232015220747. The reversal of 23232015220721 is 12702251023232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23232015220721 - 2³⁰ = 23230941478897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23232015250721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42794060 + ... + 43333538.

It is an arithmetic number, because the mean of its divisors is an integer number (2918613774000).

Almost surely, 2^{23232015220721} is an apocalyptic number.

It is an amenable number.

23232015220721 is a deficient number, since it is larger than the sum of its proper divisors (116894971279).

23232015220721 is a wasteful number, since it uses less digits than its factorization.

23232015220721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756079.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 23232015220721 its reverse (12702251023232), we get a palindrome (35934266243953).

The spelling of 23232015220721 in words is "twenty-three trillion, two hundred thirty-two billion, fifteen million, two hundred twenty thousand, seven hundred twenty-one".